mirror of
https://github.com/TeaOSLab/EdgeNode.git
synced 2025-11-04 07:40:56 +08:00
570 lines
13 KiB
Go
570 lines
13 KiB
Go
package nodes
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import (
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"bytes"
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"encoding/json"
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"errors"
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"github.com/TeaOSLab/EdgeCommon/pkg/nodeconfigs"
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"github.com/TeaOSLab/EdgeCommon/pkg/rpc/pb"
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"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs"
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"github.com/TeaOSLab/EdgeNode/internal/caches"
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"github.com/TeaOSLab/EdgeNode/internal/configs"
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teaconst "github.com/TeaOSLab/EdgeNode/internal/const"
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"github.com/TeaOSLab/EdgeNode/internal/events"
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"github.com/TeaOSLab/EdgeNode/internal/iplibrary"
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"github.com/TeaOSLab/EdgeNode/internal/metrics"
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"github.com/TeaOSLab/EdgeNode/internal/remotelogs"
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"github.com/TeaOSLab/EdgeNode/internal/rpc"
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"github.com/TeaOSLab/EdgeNode/internal/stats"
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"github.com/TeaOSLab/EdgeNode/internal/utils"
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"github.com/go-yaml/yaml"
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"github.com/iwind/TeaGo/Tea"
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"github.com/iwind/TeaGo/lists"
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"github.com/iwind/TeaGo/logs"
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"github.com/iwind/TeaGo/maps"
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"github.com/iwind/gosock/pkg/gosock"
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"runtime"
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"sync"
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"syscall"
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"time"
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)
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var sharedNodeConfig *nodeconfigs.NodeConfig
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var nodeTaskNotify = make(chan bool, 8)
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var nodeConfigChangedNotify = make(chan bool, 8)
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var nodeConfigUpdatedAt int64
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var DaemonIsOn = false
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var DaemonPid = 0
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// Node 节点
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type Node struct {
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isLoaded bool
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sock *gosock.Sock
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locker sync.Mutex
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}
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func NewNode() *Node {
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return &Node{
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sock: gosock.NewTmpSock(teaconst.ProcessName),
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}
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}
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// Test 检查配置
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func (this *Node) Test() error {
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// 检查是否能连接API
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rpcClient, err := rpc.SharedRPC()
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if err != nil {
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return errors.New("test rpc failed: " + err.Error())
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}
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_, err = rpcClient.APINodeRPC().FindCurrentAPINodeVersion(rpcClient.Context(), &pb.FindCurrentAPINodeVersionRequest{})
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if err != nil {
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return errors.New("test rpc failed: " + err.Error())
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}
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return nil
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}
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// Start 启动
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func (this *Node) Start() {
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_, ok := os.LookupEnv("EdgeDaemon")
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if ok {
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remotelogs.Println("NODE", "start from daemon")
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DaemonIsOn = true
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DaemonPid = os.Getppid()
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}
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// 处理异常
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this.handlePanic()
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// 启动事件
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events.Notify(events.EventStart)
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// 本地Sock
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err := this.listenSock()
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if err != nil {
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remotelogs.Error("NODE", err.Error())
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return
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}
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// 读取API配置
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err = this.syncConfig()
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if err != nil {
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_, err := nodeconfigs.SharedNodeConfig()
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if err != nil {
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// 无本地数据时，会尝试多次读取
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tryTimes := 0
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for {
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err := this.syncConfig()
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if err != nil {
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tryTimes++
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if tryTimes%10 == 0 {
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remotelogs.Error("NODE", err.Error())
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}
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time.Sleep(1 * time.Second)
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// 不做长时间的无意义的重试
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if tryTimes > 1000 {
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return
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}
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} else {
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break
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}
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}
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}
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}
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// 启动同步计时器
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this.startSyncTimer()
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// 状态变更计时器
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go NewNodeStatusExecutor().Listen()
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// 读取配置
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nodeConfig, err := nodeconfigs.SharedNodeConfig()
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if err != nil {
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remotelogs.Error("NODE", "start failed: read node config failed: "+err.Error())
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return
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}
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err = nodeConfig.Init()
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if err != nil {
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remotelogs.Error("NODE", "init node config failed: "+err.Error())
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return
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}
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sharedNodeConfig = nodeConfig
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// 发送事件
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events.Notify(events.EventLoaded)
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// 设置rlimit
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_ = utils.SetRLimit(1024 * 1024)
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// 连接API
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go NewAPIStream().Start()
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// 统计
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go stats.SharedTrafficStatManager.Start(func() *nodeconfigs.NodeConfig {
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return sharedNodeConfig
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})
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go stats.SharedHTTPRequestStatManager.Start()
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// 启动端口
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err = sharedListenerManager.Start(nodeConfig)
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if err != nil {
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remotelogs.Error("NODE", "start failed: "+err.Error())
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return
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}
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// hold住进程
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select {}
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}
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// Daemon 实现守护进程
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func (this *Node) Daemon() {
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isDebug := lists.ContainsString(os.Args, "debug")
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isDebug = true
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for {
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conn, err := this.sock.Dial()
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if err != nil {
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if isDebug {
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log.Println("[DAEMON]starting ...")
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}
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// 尝试启动
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err = func() error {
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exe, err := os.Executable()
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if err != nil {
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return err
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}
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// 可以标记当前是从守护进程启动的
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_ = os.Setenv("EdgeDaemon", "on")
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_ = os.Setenv("EdgeBackground", "on")
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cmd := exec.Command(exe)
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err = cmd.Start()
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if err != nil {
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return err
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}
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err = cmd.Wait()
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if err != nil {
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return err
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}
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return nil
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}()
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if err != nil {
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if isDebug {
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log.Println("[DAEMON]", err)
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}
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time.Sleep(1 * time.Second)
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} else {
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time.Sleep(5 * time.Second)
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}
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} else {
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_ = conn.Close()
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time.Sleep(5 * time.Second)
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}
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}
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}
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// InstallSystemService 安装系统服务
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func (this *Node) InstallSystemService() error {
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shortName := teaconst.SystemdServiceName
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exe, err := os.Executable()
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if err != nil {
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return err
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}
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manager := utils.NewServiceManager(shortName, teaconst.ProductName)
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err = manager.Install(exe, []string{})
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if err != nil {
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return err
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}
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return nil
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}
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// 循环
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func (this *Node) loop() error {
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// 检查api.yaml是否存在
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apiConfigFile := Tea.ConfigFile("api.yaml")
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_, err := os.Stat(apiConfigFile)
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if err != nil {
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return nil
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}
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rpcClient, err := rpc.SharedRPC()
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if err != nil {
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return errors.New("create rpc client failed: " + err.Error())
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}
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nodeCtx := rpcClient.Context()
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tasksResp, err := rpcClient.NodeTaskRPC().FindNodeTasks(nodeCtx, &pb.FindNodeTasksRequest{})
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if err != nil {
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return errors.New("read node tasks failed: " + err.Error())
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}
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for _, task := range tasksResp.NodeTasks {
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switch task.Type {
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case "ipItemChanged":
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iplibrary.IPListUpdateNotify <- true
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// 修改为已同步
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_, err = rpcClient.NodeTaskRPC().ReportNodeTaskDone(nodeCtx, &pb.ReportNodeTaskDoneRequest{
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NodeTaskId: task.Id,
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IsOk: true,
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Error: "",
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})
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if err != nil {
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return err
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}
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case "configChanged":
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err := this.syncConfig()
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if err != nil {
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_, err = rpcClient.NodeTaskRPC().ReportNodeTaskDone(nodeCtx, &pb.ReportNodeTaskDoneRequest{
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NodeTaskId: task.Id,
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IsOk: false,
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Error: err.Error(),
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})
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} else {
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_, err = rpcClient.NodeTaskRPC().ReportNodeTaskDone(nodeCtx, &pb.ReportNodeTaskDoneRequest{
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NodeTaskId: task.Id,
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IsOk: true,
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Error: "",
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})
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}
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if err != nil {
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return err
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}
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case "nodeVersionChanged":
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go sharedUpgradeManager.Start()
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}
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}
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return nil
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}
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// 读取API配置
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func (this *Node) syncConfig() error {
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this.locker.Lock()
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defer this.locker.Unlock()
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// 检查api.yaml是否存在
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apiConfigFile := Tea.ConfigFile("api.yaml")
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_, err := os.Stat(apiConfigFile)
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if err != nil {
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if os.IsNotExist(err) {
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clusterErr := this.checkClusterConfig()
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if clusterErr != nil {
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if os.IsNotExist(clusterErr) {
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return err
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}
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return errors.New("check cluster config failed: " + clusterErr.Error())
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}
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} else {
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return err
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}
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}
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rpcClient, err := rpc.SharedRPC()
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if err != nil {
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return errors.New("create rpc client failed: " + err.Error())
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}
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// 获取同步任务
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nodeCtx := rpcClient.Context()
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// TODO 这里考虑只同步版本号有变更的
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configResp, err := rpcClient.NodeRPC().FindCurrentNodeConfig(nodeCtx, &pb.FindCurrentNodeConfigRequest{
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Version: -1, // 更新所有版本
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})
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if err != nil {
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return errors.New("read config from rpc failed: " + err.Error())
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}
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if !configResp.IsChanged {
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return nil
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}
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nodeConfigUpdatedAt = time.Now().Unix()
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configJSON := configResp.NodeJSON
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nodeConfig := &nodeconfigs.NodeConfig{}
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err = json.Unmarshal(configJSON, nodeConfig)
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if err != nil {
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return errors.New("decode config failed: " + err.Error())
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}
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// 写入到文件中
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err = nodeConfig.Save()
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if err != nil {
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return err
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}
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err = nodeConfig.Init()
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if err != nil {
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return err
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}
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// max cpu
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if nodeConfig.MaxCPU > 0 && nodeConfig.MaxCPU < int32(runtime.NumCPU()) {
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runtime.GOMAXPROCS(int(nodeConfig.MaxCPU))
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} else {
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runtime.GOMAXPROCS(runtime.NumCPU())
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}
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// 刷新配置
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if this.isLoaded {
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remotelogs.Println("NODE", "reloading config ...")
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} else {
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remotelogs.Println("NODE", "loading config ...")
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}
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nodeconfigs.ResetNodeConfig(nodeConfig)
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caches.SharedManager.MaxDiskCapacity = nodeConfig.MaxCacheDiskCapacity
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caches.SharedManager.MaxMemoryCapacity = nodeConfig.MaxCacheMemoryCapacity
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if len(nodeConfig.HTTPCachePolicies) > 0 {
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caches.SharedManager.UpdatePolicies(nodeConfig.HTTPCachePolicies)
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} else {
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caches.SharedManager.UpdatePolicies([]*serverconfigs.HTTPCachePolicy{})
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}
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sharedWAFManager.UpdatePolicies(nodeConfig.FindAllFirewallPolicies())
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iplibrary.SharedActionManager.UpdateActions(nodeConfig.FirewallActions)
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sharedNodeConfig = nodeConfig
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metrics.SharedManager.Update(nodeConfig.MetricItems)
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// 发送事件
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events.Notify(events.EventReload)
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if this.isLoaded {
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return sharedListenerManager.Start(nodeConfig)
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}
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this.isLoaded = true
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return nil
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}
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// 启动同步计时器
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func (this *Node) startSyncTimer() {
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// TODO 这个时间间隔可以自行设置
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ticker := time.NewTicker(60 * time.Second)
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events.On(events.EventQuit, func() {
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remotelogs.Println("NODE", "quit sync timer")
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ticker.Stop()
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})
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go func() {
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for {
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select {
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case <-ticker.C:
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err := this.loop()
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if err != nil {
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remotelogs.Error("NODE", "sync config error: "+err.Error())
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continue
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}
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case <-nodeTaskNotify:
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err := this.loop()
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if err != nil {
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remotelogs.Error("NODE", "sync config error: "+err.Error())
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continue
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}
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case <-nodeConfigChangedNotify:
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err := this.syncConfig()
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if err != nil {
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remotelogs.Error("NODE", "sync config error: "+err.Error())
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continue
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}
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}
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}
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}()
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}
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// 检查集群设置
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func (this *Node) checkClusterConfig() error {
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configFile := Tea.ConfigFile("cluster.yaml")
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data, err := ioutil.ReadFile(configFile)
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if err != nil {
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return err
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}
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config := &configs.ClusterConfig{}
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err = yaml.Unmarshal(data, config)
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if err != nil {
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return err
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}
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rpcClient, err := rpc.NewRPCClient(&configs.APIConfig{
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RPC: config.RPC,
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NodeId: config.ClusterId,
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Secret: config.Secret,
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})
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if err != nil {
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return err
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}
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logs.Println("[NODE]registering node to cluster ...")
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resp, err := rpcClient.NodeRPC().RegisterClusterNode(rpcClient.ClusterContext(config.ClusterId, config.Secret), &pb.RegisterClusterNodeRequest{Name: HOSTNAME})
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if err != nil {
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return err
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}
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logs.Println("[NODE]registered successfully")
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// 写入到配置文件中
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if len(resp.Endpoints) == 0 {
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resp.Endpoints = []string{}
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}
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apiConfig := &configs.APIConfig{
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RPC: struct {
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Endpoints []string `yaml:"endpoints"`
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}{
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Endpoints: resp.Endpoints,
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},
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NodeId: resp.UniqueId,
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Secret: resp.Secret,
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}
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logs.Println("[NODE]writing 'configs/api.yaml' ...")
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err = apiConfig.WriteFile(Tea.ConfigFile("api.yaml"))
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if err != nil {
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return err
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}
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logs.Println("[NODE]wrote 'configs/api.yaml' successfully")
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return nil
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}
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// 监听本地sock
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func (this *Node) listenSock() error {
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// 检查是否在运行
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if this.sock.IsListening() {
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reply, err := this.sock.Send(&gosock.Command{Code: "pid"})
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if err == nil {
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return errors.New("error: the process is already running, pid: " + maps.NewMap(reply.Params).GetString("pid"))
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} else {
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return errors.New("error: the process is already running")
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}
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}
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// 启动监听
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go func() {
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this.sock.OnCommand(func(cmd *gosock.Command) {
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switch cmd.Code {
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case "pid":
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_ = cmd.Reply(&gosock.Command{
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Code: "pid",
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Params: map[string]interface{}{
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"pid": os.Getpid(),
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},
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})
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case "stop":
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_ = cmd.ReplyOk()
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// 退出主进程
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events.Notify(events.EventQuit)
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os.Exit(0)
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case "quit":
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_ = cmd.ReplyOk()
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_ = this.sock.Close()
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events.Notify(events.EventQuit)
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// 监控连接数，如果连接数为0，则退出进程
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go func() {
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for {
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countActiveConnections := sharedListenerManager.TotalActiveConnections()
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if countActiveConnections <= 0 {
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os.Exit(0)
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return
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}
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time.Sleep(1 * time.Second)
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}
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}()
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}
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})
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err := this.sock.Listen()
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if err != nil {
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logs.Println("NODE", err.Error())
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}
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}()
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events.On(events.EventQuit, func() {
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logs.Println("NODE", "quit unix sock")
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_ = this.sock.Close()
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})
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return nil
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}
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// 处理异常
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func (this *Node) handlePanic() {
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// 如果是在前台运行就直接返回
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backgroundEnv, _ := os.LookupEnv("EdgeBackground")
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if backgroundEnv != "on" {
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return
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}
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var panicFile = Tea.Root + "/logs/panic.log"
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// 分析panic
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data, err := ioutil.ReadFile(panicFile)
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if err == nil {
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var index = bytes.Index(data, []byte("panic:"))
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if index >= 0 {
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remotelogs.Error("NODE", "系统错误，请上报给开发者: "+string(data[index:]))
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}
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}
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fp, err := os.OpenFile(panicFile, os.O_CREATE|os.O_TRUNC|os.O_WRONLY|os.O_APPEND, 0777)
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if err != nil {
|
||
logs.Println("NODE", "open 'panic.log' failed: "+err.Error())
|
||
return
|
||
}
|
||
err = syscall.Dup2(int(fp.Fd()), int(os.Stderr.Fd()))
|
||
if err != nil {
|
||
logs.Println("NODE", "write to 'panic.log' failed: "+err.Error())
|
||
}
|
||
}
|